SDO HMI 2011-12-12 17:58:55 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.19 | 4.34 | 0.85 | 3.12 | -15.21 | 326.82 | -44.57 | 110.68 | 0.7259 | 286.7 | 128.8 | |
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back to the solar disc SDO HMI 2011-12-12 17:58:55 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 0.77 | 0.00 | 0.53 | -14.57 | 329.07 | -42.33 | 110.58 | 0.6985 | 602.0 | 470.2 | |
| 0.00 | 1.02 | 0.00 | 0.72 | -14.47 | 327.50 | -43.89 | 109.91 | 0.7164 | -454.0 | -471.5 | |
| 1.19 | 1.53 | 0.85 | 1.10 | -14.58 | 326.74 | -44.65 | 109.82 | 0.7253 | 436.4 | 274.5 | |
| 0.00 | 1.02 | 0.00 | 0.77 | -17.24 | 324.77 | -46.62 | 112.68 | 0.7547 | 585.0 | 412.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
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| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
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that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
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| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |